Learn Java from Scratch - A Beginner's Guide - Step 12 - Adding and Removing Marks - Problem with Arrays

The video discusses the challenges of modifying arrays, such as adding or removing elements, due to their fixed size. It explains that to add or remove elements, a new array must be created and elements copied over, which involves complex logic. The video concludes by introducing the concept of an ArrayList, which allows dynamic resizing, and sets the stage for further exploration in the next video.

What is a major limitation of arrays when it comes to modifying their size?

• Arrays automatically resize themselves.

• Arrays can only store integers.

• Arrays cannot change size once created.

• Arrays can only be used in Java.

What must be done to add a new element to an existing array?

• Increase the array size directly.

• Create a new array and copy elements.

• Use a special add function.

• Overwrite an existing element.

How can you remove an element from an array?

• Delete it directly from the array.

• Use a remove function.

• Set the element to null.

• Create a new array without the element.

Why is managing arrays considered complex?

• Arrays require a lot of memory.

• Arrays need complex logic for resizing.

• Arrays are not supported in all languages.

• Arrays can only hold one type of data.

What solution does Java provide to overcome the limitations of arrays?

• Hash Maps

• Linked Lists

• Stacks

• ArrayLists